WEB PAGES: CREATING AND MAINTAINING ** Wednesday: 2:00PM – 3:15PM Instructor: Cajetan Cordeiro TA: Tom Keane Email: [email protected] Class Web Site: http://udel.edu/~cordeicf/web Acknowledgements and Gratitude to Frank Romanelli who developed this course PCs challenge TVs for leisure attention “ The personal computer souped up with gigahertz of processing power and speedy Internet connections is now a serious competitor for the TV when it comes to how we spend our leisure time at home. ” TheNewsJournal - Oct, 2003 “CoffeeBreak” Survey of 500 home computer owners Want to spend more time to: • 30% manage & edit digital photos • 21 % edit videos • 17 % burn DVD’s • 32 % want to publish a web site 62 percent, said they expect the amount of things they do on their computer to increase over the next year So, you want to make a web page… How Answers many to web somepages basicare questions…. there on the Internet ? www.google.com • indexes the greatest number of web pages • provides a free service that searches this index in less than a second. • as of December 2001 !! over two billion The current estimated World Population is ~6.8 billion people *from the www.census.gov Feb 8, 2010 What is a web page ?? An HTML file A text file with HyperText Markup Language Located on the World Wide Web A large network of server and client computers Often hyperlinked to other documents on the Web May reference other related files A depiction of a small portion of the Internet A root server and IP addresses Server Comcast User Server Verizon Server – Udel.edu C:\Users\Cajetan>tracert udel.edu Tracing route to udel.edu [128.175.13.92] over a maximum of 30 hops: 1 7 ms 1 ms 2 * 3 9 ms 9 ms 8 ms s01e1.springfield.ga.savannah.comcast.net [68.86.193.85] 4 10 ms 10 ms 10 ms te-1-1-ur01.tyboutscrnr.de.panjde.comcast.net [68.86.209.118] 5 9 ms 8 ms 9 ms 68.85.35.42 6 10 ms 11 ms 11 ms te-0-1-0-7-ar01.newcastle.de.panjde.comcast.net [68.86.153.246] 7 13 ms 11 ms 11 ms pos-0-4-0-0-ar01.401nbroadst.pa.panjde.comcast.net [68.86.210.209] 8 11 ms 11 ms 11 ms te-1-1-ur01.401nbroadst.pa.panjde.comcast.net [68.86.158.154] 9 12 ms 10 ms 11 ms ge-3-2-pr01.philly.pa.core.comcast.net [68.86.153.225] 10 10 ms 10 ms 10 ms 69.241.68.214 11 15 ms 13 ms 13 ms remote.udel1.magpi.net [216.27.98.38] 12 13 ms 11 ms 12 ms chp-rt2-v9.nss.udel.edu [128.175.111.10] 13 13 ms 12 ms 12 ms copland.udel.edu [128.175.13.92] * * Trace complete. <1 ms 192.xxx.xx.xx Request timed out. What is a web page ?? • An HTML file • A Text file with HyperText Markup Language • Located on the World Wide Web • A huge network of servers and clients • Often hyperlinked to other documents on the Web Access other web pages through links •May reference other related files Pictures, sound, videos ... How do I access a web page ? Connected to a Server – Internet Service Provider Dial-up Cable DSL FIOS U of D Comcast Verizon AOL Juno EarthLink How do I access a web page ? Connected to a Server – Internet Service Provider Browser - Located on YOUR computer A program that provides a means of viewing the contents of web pages and of navigating from one Netscape Mozilla FireFox page to another. Opera Ace Explorer Google Chrome What’s a Browser do ? A browser must be able to read files (e,g, written in HTML, CSS, Javascript), from many different types of computers (PC's. Mac, PDA) & Operating Systems (e.g. Windows, MAC-OS, Linux) Specifications developed / maintained by an international consortium of developers / software companies www.w3.org Netscape Mozilla FireFox Opera Ace Explorer Chrome How does a browser access a web page ? Browser Internet Explorer Address: http://www.udel.edu I.P. Address Example 128.175.13.63 Suffix The Domain Name Server (DNS) The Beauty of Domain Name Servers DNS is a rather amazing distributed database. It handles billions of requests for billions of names every day through a network of millions of name servers administered by millions of people. Every time you send an e-mail message or view a URL, you are making requests to multiple name servers scattered all over the globe. What's amazing is that the process is usually completely invisible and extremely reliable! Type Locn. Internet Explorer Address: http://www.udel.edu Server at the University of Delaware .com .edu .net .gov .org .ca .jp .in .cn The Domain Name Server (DNS) howstuffworks.com Default page - “ index.html ” Browser Internet Explorer Address: http://www.udel.edu/index.html File Name Files and Folders A: Drive C: Drive D: Drive Root Directory Documents Windows & Settings Program Files My Documents My Webfiles webfile1.html webfile2.html webfile3.html An Internet Address Internet Explorer Address: http://www.udel.edu/academy/index.html Sub-domain “www” Domain “udel.edu” Suffix “edu” Sub-folder name & File name Browser files can be: On a web server Internet Explorer Address: http://www.udel.edu/academy/index.html On your own computer C:/my documents/my webfiles/index.html Internet Explorer Address: http://udel.edu/academy/index.html Internet Explorer Address: http://www.udel.edu/academy/index.html hypertext transport protocol Other protocols include : FTP – File transfer protocol • WEB PAGES: CREATING AND MAINTAINING ** L19 Wednesday: 10:15 a.m.-11:15 a.m. Instructor: Cajee Cordeiro This fast-paced, in-depth course challenges students to learn the skills necessary to design, create, and publish a Web site using various programming methods with with emphasis emphasison on learning learningHTML. HTML Limited to 12 students. Amount of outside preparation required for each class: * 0-1 hours ** 1-2 hours *** more than 2 hours Tools! • Computer • Internet Connection • Browser ( to view ) • Software Program ( to create ) Microsoft Front Page Notepad Netscape (Mozilla) Composer WYSIWYG Editors MS WORD Power Point Etc, etc etc … Steps in creating a Basic Web Site 1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. Plan Plan Your Your Site Site Plan EnterYour YourSite Text and Headlines Plan Graphics Your Site Add Plan Your Site Use Tables to Organize Information Plan “links” Your Site Add to other pages Plan Get aYour HostSite Plan Your Site Domain Name Plan Your SiteWeb Site Publish Your Discussion… Questions… HTML http://udel.edu/~cordeicf/web Frank Romanelli’s Sample Sites Civic League Frank and Ronni’s Family CPAW Pencader Heritage Yahoo! Haiti Web Site - Examples
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